| Primary satellite | Secondary satellite |
| Name | Tiros 1 | deb Feng Yun 1B |
| Spacetrack catalog number | 29 | 23261 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2026 Jan 18 23:56 | 2026 Jan 18 12:58 |
| Time of closest approach (UTC) | 2025 Dec 19 11:03:46.854 |
| Minimum distance | 263.470 km |
| Height difference | 1.091 km |
| Relative speed | 13.833 km/s |
| Angle between velocity vectors | 133° |
| Geographic position | 39.5°N, 48.9°W |
| Height | 652 km |
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